I am involved in identifying and characterizing young stellar groups and clusters to study the physical processes involved in the late dynamical evolution of young star clusters/groups. To pursue my goals, I have joined the Legacy Extragalactic UV Survey (LEGUS) Team, a Treasury Program with the Hubble Space Telescope. Six SUNY Geneseo students have also joined the effort and are classifying star clusters in LEGUS images (summer 2015). Those students are Syed D. Ahmad, Luca Beale, Kieran Brown, David Clarkson, Gabriel Guidarelli, and Mike Weber. Their work contributed to this MNRAS publication.

These past summers (2017-2018), I worked with two undergraduate students, Laura Kowalski and Kristen Churnetski, on identifying planetary nebulae in the images from the LEGUS mosaics. We search 32 galaxies and have identified over a hundred of candidates. A poster of our preliminary results were presented at the AAS meeting in January 2018.

As part of an international collaboration GOSC, I have used the echelle spectrograph at HET to collect high resolution, high signal-to-noise, spectra of the most massive stars of the Milky Way. The NoMaDS project at HET focused particularly on dim stars of the Northern Hemisphere that were unaccessible to smaller telescopes. The spectra are now used by the GOSC team to study massive O-type stars in a consistent and homogenous manner.